PHP traverses directories and returns statistical directory size examples_PHP tutorial

Share a PHP method to traverse a directory and return statistics on the directory size.
Code:

<?<span>php 
</span><span>$dirname</span> = "test1"<span>; 
</span><span>//</span><span>mkdir($dirname);

//遍历一层目录 </span>
<span>function</span> listdir(<span>$dirname</span><span>) { 
</span><span>$ds</span> = <span>opendir</span>(<span>$dirname</span><span>); 
</span><span>while</span>(<span>$file</span> = <span>readdir</span>(<span>$ds</span><span>)) { 
</span><span>$path</span> = <span>$dirname</span>.'/'.<span>$file</span><span>; 
</span><span>if</span>(<span>is_dir</span>(<span>$file</span><span>)) { 
</span><span>echo</span> "DIR:".<span>$file</span>."<br>"<span>; 
</span><span>if</span>(<span>$file</span> != "." && <span>$file</span> != ".."<span>) { 
listdir(</span><span>$file</span><span>); 
} 
} 
</span><span>else</span><span> { 
</span><span>echo</span> "FILE:".<span>$file</span> . "<br>"<span>; 
} 
} 
}

</span><span>function</span> totdir(<span>$dirname</span>) { <span>//</span><span>对listdir稍加修改 </span>
<span>static</span> <span>$tot</span> = 0<span>; 
</span><span>$ds</span> = <span>opendir</span>(<span>$dirname</span><span>); 
</span><span>while</span>(<span>$file</span> = <span>readdir</span>(<span>$ds</span><span>)) { 
</span><span>$path</span> = <span>$dirname</span>.'/'.<span>$file</span><span>; 
</span><span>if</span>(<span>is_dir</span>(<span>$file</span><span>)) { 
</span><span>//</span><span>echo "DIR:".$file."<br>"; </span>
<span>if</span>(<span>$file</span> != "." && <span>$file</span> != ".."<span>) { 
</span><span>$tot</span> += totdir(<span>$file</span><span>); 
} 
} www</span>.jbxue.<span>com
</span><span>else</span><span> { 
</span><span>//</span><span>echo "FILE:".$file . "<br>"; </span>
<span>$tot</span> += <span>filesize</span>(<span>$path</span><span>); 
} 
}

</span><span>//</span><span>返回总计 </span>
<span>return</span> <span>$tot</span><span>; 
}

listdir(</span><span>$dirname</span><span>);

</span><span>echo</span> totdir(<span>$dirname</span>)." bytes"<span>;

</span>?>

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